Lamp.



o. A. Amugsom.,4

LAMP.

APPLICATION FILED DEO. 17, 1909.

985,31 8. anted Feb, 285 1911.

OSCAR A. ARNESON, OF CHICAGO, ILLINOIS, ASSIGNOR TO YALE MiNUFACTURING COMPANY, OF CHICAGO, ILLINOIS. i

UNITED STATES PATENT OEFICE.

Specification of Letters Patent.

Patented Feb. 28, 1911.

Application filed December 17, 1909. Serial No. 533,689.

To all whom tt may concern:

Be it known that I, OSCAR A. Anunson, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

This invention relates particularly to gasolene or hydrocarbon lamps, and embodies such improvements in the details of construction and general arrangement of parts of such lamps as will appear from the following description and from the accompanying drawings, in which- Figure 1 is a side view of a hydrocarbon lamp embodying this invention, parts being broken away to illustrate the interior construction; Fig. 2 is a sectional detail taken on the line 2-2 of Fig. 1; Fig. 3 is a sectional detail taken on the line 3-3 of Fig, l; and Fig. 4 is an enlarged sectional detail of the generator and controlling valve.

As shown in these drawings, 5 indicates a pipe leading` from any convenient source of gasolene or other hydrocarbon supply, to the lamp. This pipe has a controlling or shut-oit valve 6 therein for regulating or cutting off the supply of fuel to the lamp proper. The lower end of the pipe 5 is threaded or screwed. in the upper end 6 of the main lamp casting or member 7, and the portion of the pipe between the valve G and this casting is preferably filled with suitable means for straining the fuel passing therethrough to the lamp. This strainer preferably consists of an inner core 8 of asbestos wicking, which is surrounded by wire gauze 9, this gauze and wicking being held up from the end 6 of the burner member 7 by means of a coiled spring or wire 10. The Lipper' portion of the lamp member 7 is somewhat in the form of an inverted V in side elevation, as shown in Fig. 3, and is also of similar' form in the lower port-ion thereof, as seen in the plan view of Fig. 2. This peculiar form of the member permits a large central opening 11, which extends from the bottom of the member nearly to the top thereof and also permits holes or passageways 12 and 13 to be drilled or formed in the sides thereof, these passageways leading from the end 6 to a lateral projection 14 adjacent to the bottom of the lamp and furnishing communication from the pipe 5 to the generator 15. This lgenerator is also provided with an inner wick 1G of lasbestos or other suitable material and an outer or intermediate wrapping of wire gauze 17, the gauze and wiclr being held away from the exit end by means of a coiled wire or spring 18.

At the outer end of the generator tube 15 vis a casting or fitting 19 having a hole or Jassageway 2O leading therethrough up to the controlling valve 21. This valve is of peculiar novel construct-ion, and is intended for cutting off the gas supply so that the light' will burn either brightly or dimly but not for shutting olf the gas entirely. Its construction is best shown in Fig. 4, where it will be notedthat the inner projection 22 of the valve body 21 is provided with a nipple 23 having a very small central opening 24 therethrough. jection 25 of the valve body is threaded. to receive a valve stem 26 and is also provided with a packing device 27. At the forward inner end of the valve stem 26 is a fine wire 2S which is adapted to pass into or through the hole 24 but which does not entirely close said hole. At the outer end of the valve stem 26, I provide means for turning the stein, such for instance as a lever 29 having chains 30 at the end thereof arranged in the well known manner. This valve is so proportioned that when the valve stem 26 is turned in one direction, the nipple or wire 28 will pass into or through the opening 24, thereby partially closing said opening and only allowing a comparatively small amo-unt of gas to pass therethrough. When the stein is turned in the opposite direction, the Wire or nipple is drawn away from the hole 24, leaving the orifice free for the passage of gas. This nipple in pass ing into and out of the hole will tend to clean the same and prevent carbo-n from forming therein, which would otherwise be liable to close such orifice. The outlet 24 from this regulating valve is directed so that the jet therefrom will pass into the outer'open end of a mixing pipe 31 which has its inner end screwed or fastened into the lateral projection 32 on the side of the fitting or member 7, the opening through the pipe or tube 31 leading directly into the central opening 11 which passes downwardly through the fitting 7. Atthe bot-tom of this fitting orlmember 7 is the burner 33 and mantle 34 which are arranged in a well The .opposite end or pro known manner. the mantle preferal'ilj-Y bcing tied in position as indicated in Fig. l. The generator' tube 15 and a lateral support projecting from the opposite end of the central member 7, carry the ring 3G forn'iing thc lower part of the outer casing for the lamp. This ring only extends partially out on the generating' tube 15, thereby leaving a sufficient portion of this tube extending beyond the sides ot' the lamp to enable the swab 37 to be hung outside ot' the lamp casing. rlhis swab is for the purpose of burning alcohol under the generator tube for heating the tube when the lamp is started, and this arrangement whereby the swab may be hung outside of the lamp cas-- ing without moving or displacing` any portions of the lamp one of considerable importance, and provides o-ne of the desirable features of this invention. The lamp casing is completed by means of the dome or top 38, which rests on the ring 36 and which is provided near its base with a plurality of holes 39 to permit the egress of the gases of combustion. Above the cover or top 38, I also prefer to place a shield 40, which adds to the appearance of the lamp and also prevents theI valve 6 from becoming heated.

At the bottom of the ring 36 is preferably secured a globe 41 of any desirable shape.

The operation of the lamp will be readily .understood from the above description and drawings. Vhen the lamp is first started, the swab 37, saturated'with alcohol, is hung on the generator tub-e 15 and lighted, thereby causing' the generator tube to become suf'- ficiently heated to convert the gasolene or other I'iuid into The valve 6 is then opened, which permits the fuel to pass down through the pipe 5 and through the side holes or passage ways 12 and 13 into the generator 15, where it becomes heated and passes in the form of through the hole 2O in the fitting' 19, up and through the valve 2l, the latter being preferably opened to its fullest extent. The jet, which passes out' through the aperture 2e into-the open end of the mixer tube 31, carries in a suflicient amount of air for combustion, the air and gas then passing through this tube and down through the central opening 11 to the burner 33 at the lower' end of the central fitting 7, Where it is lighted, causing incandescence of the mantle 34. As soon as the initial generation'occurs, the swab 37 may be' removed, when the heat of the burner, acting directly on the lower end of the fitting y7, and particularly on the side projections containing-'the holes 12 and 13, and actingupon the inner end of the generator' 15, 'cause a suflicient generation of the liquid fuel for the further continued operation ofthe lamp. l On account of having p the double passageway from the feed pipe 5 to the generator tube 15, there is little likelihood ot there being any sutlicieiit slppage el the fuel supply to interfere Witi the operation of the lamp. Fln'thermore, on account of the peculiar a1'rangernei1trvhereby the fuel is lcd down close to the burner and thc generating tube is arranged below the mixing tube, a constant and successful generation of gas is assured and the mixed and air will also be partially heated before passing to the burner. This peculiar arrangement of the generator' will provide sufficient generation, even though the supply of gas is cut of? so that there is only a dim light burning, the valve 21 being used for dimming the light in the manner heretofore described.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. In a lamp of the character set forth, the combination of a vertically arranged supply pipe, a strainer in the lower end of said pipe, a burner tting secured to the lower end of said pipe, passageways in the sides of said fitting, leading from the lower end of said pipe to a lateral projection on said fitting, a generator secured in said lateral project-ion and receiving its supply through said passageways, a valve at the end o-f said generator for regulating the flow of gas from said generator into the mixing tube, and a mixing tube arranged above said generator and having its upper end adapted to receive the jet from said valve', the inner end of said tube being secured in a projection on said fitting, said iitting being provided with a central opening making connection with said mixing tube and adapted to conduct the mixed gases downwardly to the burner.

2. In a gasolene or hydrocarbon lamp, the combination of a supply pipe, means arranged Within said pipe for straining the liquid fuel, a. casting or fitting secured to the lower end of said pipe, said litting having vertical and horizontal ribs at the sides thereof containing holes leading from said pipe to a horizontal projection at the lower end of said itting, said fitting being also provided With acentral, vertical opening terminating in a horizontal project-ion or connection arranged above said last-named projection; a casing surrounding the lower* end of said pipe and said fit-ting, a generator connecting with the lower projection on said fitting and extending out through said cas'- ing, a mixing tube secured in the secondnamed projection and also extending out through said casing, the opening through said tube leading to the central opening in said fitting, and a regulating' valve at the end of the generator arranged to direct the gas into the open end of the mixer tube to contro-l the flow of gas thereto.

3. In a gasolene or hydrocarbon lamp, the combination of a mainburner member having a central passage Way leading from the flee but not to ill the saine, a mixing tube bottom to a lateral projection adjacent to Secured in the uppermost horizontal eonneo- 15 the top thereof and having one or more holes tion and having its open end opposite Said along its sides leading from a vertical top orifice, a ring Supported on said main fitting,

5 connection to a horizontal connection adjaa cap or dome resting on said ring and havcent to the bottom thereof, a supply pipe ing its upper end engaging with said Supply leading upwardly from said top connection, pipe and having an outlet apertures therein, 20 a valve in said supply pipe, a generator leadand a shield secured to Said pipe above the ing from the lowerniost horizontal connec* dolnefand beneath the first-mentioned valve.

lo tion, anupwardly extending fitting at the OSCAR A.. ARNESON.

end of said generator, a valve in said fitting Viitnesses: having an inwardly directed orifice,r a Wire A. W. FENSTEMAKER, on the Valve Stern adapted to enter Said ori- H. H. MiNARD.

Copiesof this patent may be obtained for five cents each, by addressing the Gommissoner of Patents,

Washington, D. C. 

